Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 22593295499634 Finish headers GC. Used gas: 29485908550203 Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 18039201511956 Finish headers GC. Used gas: 24706387179561